Covalent organic framework–based porous ionomers for high-performance fuel cells-Reference-Cited by-同舟云学术

Covalent organic framework–based porous ionomers for high-performance fuel cells

Published:2022-10-14 Issue:6616 Volume:378 Page:181-186
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zhang Qingnuan¹^ORCID,Dong Shuda¹^ORCID,Shao Pengpeng¹^ORCID,Zhu Yuhao¹,Mu Zhenjie¹^ORCID,Sheng Dafei¹^ORCID,Zhang Teng¹,Jiang Xin²,Shao Ruiwen³,Ren Zhixin¹^ORCID,Xie Jing¹^ORCID,Feng Xiao¹^ORCID,Wang Bo¹^ORCID

Affiliation:

1. Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.

2. Orthopaedics Department, China-Japan Friendship Hospital, Beijing 100081, P. R. China.

3. Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Medical Technology, Beijing Institute of Technology, Beijing 100081, P. R. China.

Abstract

Lowering platinum (Pt) loadings without sacrificing power density and durability in fuel cells is highly desired yet challenging because of the high mass transport resistance near the catalyst surfaces. We tailored the three-phase microenvironment by optimizing the ionomer by incorporating ionic covalent organic framework (COF) nanosheets into Nafion. The mesoporous apertures of 2.8 to 4.1 nanometers and appendant sulfonate groups enabled the proton transfer and promoted oxygen permeation. The mass activity of Pt and the peak power density of the fuel cell with Pt/Vulcan (0.07 mg of Pt per square centimeter in the cathode) both reached 1.6 times those values without the COF. This strategy was applied to catalyst layers with various Pt loadings and different commercial catalysts.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference48 articles.

1. Ultralow-loading platinum-cobalt fuel cell catalysts derived from imidazolate frameworks

2. Achievements, challenges and perspectives on cathode catalysts in proton exchange membrane fuel cells for transportation

3. Differences in the Electrochemical Performance of Pt-Based Catalysts Used for Polymer Electrolyte Membrane Fuel Cells in Liquid Half- and Full-Cells

4. Engineering bunched Pt-Ni alloy nanocages for efficient oxygen reduction in practical fuel cells

5. New Insights into Perfluorinated Sulfonic-Acid Ionomers

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